摩擦耗能支撑参数优化

提出摩擦耗能支撑参数优化的一种新数学模型．它的特点是在相同的层间位移角限值下，所求得的框架各层耗能支撑刚度之和最小，从而实现安装较少的耗能装置而能达到相同的抗震要求．文中利用遗传算法求解该优化问题，编制基于遗传算法的摩擦耗能框架结构弹塑性动力优化分析程序GAOFF．算例表明，该方法有效。

Parameter Optimization with Frictional Energy Dissipation as a Brace

For studying the problem of parameter optimization bracing by frictional energy dissipation, a new mathematical model is proposed. The model aims at minimizing the sum of the stiffness of energy dissipative brace at given storey in a frame structure under the limitation of the same relative storey displacement angle. Thus the requirement of seismic resistance can be satisfied with less devices of energy dissipation. In this paper, genetic algorithm is used for solving this problem of optimization; and the computer program based on genetic algorithm is developed for a frame structure of frictional energy dissipation to conduct elastoplastic and dynamic and optimizing analysis. The method is shown by computational examples to be effective.